Error: S4s-elt-character: Non-whitespace Characters Are Not Allowed In Schema Elements Other Than 'xs:appinfo' And 'xs:documentation'

Question

I have this xml-Schema:

Answer 1

We also had this problem. The reason was the address of the schema http:://xyz.xsd was replaced with https:://xyz.xsd. Our schema library was not able to forward to the https address via http one. So we simply changed the http adresses to https ones in the xml file.